@electronic{en.wikipedia.org,
   title       = {Formative assessment - Wikipedia, the free encyclopedia}, 
   url         = {http://en.wikipedia.org/wiki/Formative_assessment},
   biburl      = {https://puma.uni-kassel.de/url/3fba1027217b27b22afc9046fc6aa3b2/pfischer},
   keywords    = {Definition assessment begrifflich formativ},
   added-at    = {2011-01-07T13:28:24.000+0100},
   description = {},
   interhash   = {3fba1027217b27b22afc9046fc6aa3b2}, 
   intrahash   = {3fba1027217b27b22afc9046fc6aa3b2}
}